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Temperature reducing window film
Good day all,
As per title, I need some advice on Temperature reducing window film. Client’s office gets a lot of heat from the sun.
Does any of you offer this and what materials do you use?
And more importantly – does this film works?
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6 Replies
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Hi Pane, I’ve used a thermal block window film in the past, do you know if the glass is laminated or plate?
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quote Kevin Mahoney:Hi Pane, I’ve used a thermal block window film in the past, do you know if the glass is laminated or plate?Hi Kevin,
I don’t know what that means, sorry.
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Hi Pane, laminated glass requires one type of film and toughened another and usually applied externally for toughened.
Loads of factors to consider, worth subbing it out to a glass film installer and take a step back
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I would agree with Chris. The film generally goes on the inside and bounces the suns heat back out through the glass, in effect, super heating it. Laminated glass will struggle to cope with this & can crack in extreme heat. Toughened glass handles heat better but if you don’t know what it is, you don’t want a repair bill on your desk
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Thank you gentlemen! Point taken. Will pass.
Good day! -
The reason toughened or tempered glass doesn’t suffer from thermal stress is during manufacture they reach temperatures over 600 degrees C so much higher than the sun will ever heat the glass up to.
Float is very weak and breaks easily, so if dark film is applied it could heat the glass up causing it to expand and push against tight frames (thermal stress).
Laminated glass can be prone to thermal stress on account of the multiple layers of bonded glass pushing against each other if a dark film is applied resulting in high heat absorption.
When it comes to choosing a solar film for flat glass the first question should always be “does it matter what it looks like?”
Mirror films are the most common as they reflect the heat away before it is absorbed into the glass, but not everyone wants their windows into look like
mirrors.
There are some fantastic films suitable for float and laminated giving great TSER values from totally clear, slight tint (same as front windscreen on a vehicle) and if it’s toughened then various levels of tints (like sunglasses).
TSER = Total Solar Energy Rejection [emoji41][emoji41][emoji41]Hope that helps a little
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